Robtex

Up: 213.131.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 213.131.84.0/23
Down right: 213.131.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.131.84.2	PTR	mail.contrackfm.com
213.131.84.66	PTR	host-213-131-84-66.static.link.com.eg
213.131.84.107	PTR	mail.nacegypt.com
213.131.84.179	A+PTR	mail.ginza.com.eg
213.131.84.194	PTR	micro.microtech.com.eg
213.131.84.210	PTR	mail.pgesco.com
213.131.85.68	PTR	mail.alexfiber.com
213.131.86.214	PTR	host-213-131-86-214.static.link.com.eg
213.131.87.19	PTR	host-213-131-87-19.static.link.com.eg
213.131.87.36	PTR	host-213-131-87-36.static.link.com.eg
213.131.87.36	A	marah.tv
213.131.87.36	A	moodi2.com
213.131.87.39	PTR	host-213-131-87-39.static.link.com.eg
213.131.87.66	A+PTR	host-213-131-87-66.static.link.com.eg
213.131.87.78	PTR	host-213-131-87-78.static.link.com.eg
213.131.87.109	PTR	host-213-131-87-109.static.link.com.eg
213.131.87.160	PTR	host-213-131-87-160.static.link.com.eg
213.131.87.166	PTR	host-213-131-87-166.static.link.com.eg
213.131.87.166	A	mail.arabcallsd.com
213.131.87.166	A	mail.call-pak.com
213.131.87.174	PTR	host-213-131-87-174.static.link.com.eg